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环境卫生
huánjìng wèishēng
hygien.
صحة بيئية
؛
صحة البيئة
؛
تعزيز الصحة البيئية
welf.
الصرف الصحي
؛
إصحاح
环境卫生:
24 phrases
in 5 subjects
Environment
3
Forestry
2
Hygiene
2
Name of organization
3
United Nations
14
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